KraftPowercon PCM2 User manual
KraftPowercon Sweden AB, Hjalmar Petris väg 49, S-352 46 Växjö, Sweden, Tel: +46 470-705200, Fax: +46 470-705201,
www.kraftpowercon.com
You must read this manual before installation, use or work on the product.
This product contains dangerous voltage that when touched can cause electric shock, burns or
death.
The product must be installed by qualified personnel and according to the installation instructions.
Service may only be performed by authorised service personnel. The equipment housing may only
be removed by authorised personnel when all power has been cut to the equipment for at least
five minutes. The protective covers and contact safety devices inside the equipment may only be
removed by authorised service personnel.
The power must always be disconnected in a safe way before starting any service/maintenance.
Manual for
Monitoring unit type PCM2
SAFETY INSTRUCTIONS
Manual: 9-1623-C
P/n: 0001077
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We reserve the right to make changes to the content of this manual without prior notification.
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CONTENTS
1PRESENTATION...................................................................................... 7
2SAFETY INSTRUCTIONS......................................................................... 8
3TECHNICAL DATA ................................................................................. 9
3.1ELECTRICAL DATA ...................................................................................................................... 9
3.1.1Common electrical data........................................................................................................... 9
3.1.2Model dependent electrical data.............................................................................................. 9
3.2Environmental data ...................................................................................................................... 9
3.3Mechanical data .......................................................................................................................... 9
3.3.1Operator panel ........................................................................................................................ 9
3.3.2I/O module ............................................................................................................................ 10
3.4Conformity with standards ......................................................................................................... 10
4FUNCTIONAL DESCRIPTION................................................................11
4.1GENERAL................................................................................................................................... 11
4.2OPERATOR PANEL.................................................................................................................... 11
4.3I/O UNIT.................................................................................................................................... 11
4.4FUNCTIONS.............................................................................................................................. 11
4.4.1Float charging ........................................................................................................................ 11
4.4.2Equalizing charging ............................................................................................................... 12
4.4.2.1General ............................................................................................................................. 12
4.4.2.2Manual equalizing charging .............................................................................................. 12
4.4.2.3Automatic equalizing charging.......................................................................................... 12
4.4.3Battery circuit test .................................................................................................................. 12
4.4.3.1Simple battery circuit test .................................................................................................. 12
4.4.3.2Advanced battery circuit test ............................................................................................. 13
4.4.4Double systems...................................................................................................................... 13
4.4.4.1General ............................................................................................................................. 13
4.4.4.2Earth fault measuring......................................................................................................... 13
4.4.4.3Battery circuit test.............................................................................................................. 13
4.4.4.4Load sharing...................................................................................................................... 13
4.4.4.5System setup...................................................................................................................... 13
5OPERATION ..........................................................................................15
5.1General...................................................................................................................................... 15
5.2OPERATOR PANEL.................................................................................................................... 15
5.2.1Display .................................................................................................................................. 15
5.2.2Push buttons .......................................................................................................................... 15
5.2.3LED “Alarm” .......................................................................................................................... 16
5.3MENU MANAGEMENT............................................................................................................. 16
5.3.1General.................................................................................................................................. 16
5.3.2Select menu option................................................................................................................ 16
5.3.3Take action ............................................................................................................................ 16
5.3.4Adjust value........................................................................................................................... 16
5.4MENU OVERVIEW .................................................................................................................... 17
5.5INITIAL SCREEN ........................................................................................................................ 19
5.5.1General.................................................................................................................................. 19
5.5.2Normal float charging condition............................................................................................ 19
5.5.3Other charging conditions ..................................................................................................... 19
5.5.4Alarm..................................................................................................................................... 19
5.5.5Set clock ................................................................................................................................ 19
5.6MAIN MENU ............................................................................................................................. 20
5.7SHOW ....................................................................................................................................... 20
5.7.1General.................................................................................................................................. 20
5.7.2Show battery related data ...................................................................................................... 20
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5.7.3Show rectifier......................................................................................................................... 20
5.7.3.1Show voltage and current.................................................................................................. 20
5.7.3.2Show detailed rectifier data ............................................................................................... 20
5.7.4Show insulation ..................................................................................................................... 21
5.7.5Show statistics........................................................................................................................ 21
5.7.5.1Menu option...................................................................................................................... 21
5.7.5.2Mains fault ........................................................................................................................ 21
5.7.5.3External fault ..................................................................................................................... 21
5.7.5.4Operating time .................................................................................................................. 21
5.7.5.5Program version ................................................................................................................ 21
5.8CHARGE CONTROL.................................................................................................................. 22
5.8.1General.................................................................................................................................. 22
5.8.2Start/stop equalizing charging ................................................................................................ 22
5.8.3Manual battery circuit test ..................................................................................................... 22
5.9ALARM ...................................................................................................................................... 22
5.9.1General.................................................................................................................................. 22
5.9.2Alarm settings ........................................................................................................................ 22
5.9.2.1Level ................................................................................................................................. 23
5.9.2.2Delay ................................................................................................................................ 23
5.9.2.3Relay (A-D)........................................................................................................................ 23
5.9.2.4Relay (E-H) ........................................................................................................................ 23
5.9.2.5Return ............................................................................................................................... 23
5.9.2.6Show ................................................................................................................................. 24
5.9.3Alarm log............................................................................................................................... 24
5.9.4Rectifier status log.................................................................................................................. 24
5.10SETTINGS .................................................................................................................................. 24
5.10.1General.................................................................................................................................. 24
5.10.2Adjust the voltage level for float charging .............................................................................. 24
5.10.3Adjust the voltage level for equalizing charging..................................................................... 24
5.10.4Adjust the current limit value................................................................................................. 25
5.10.5Adjust clock........................................................................................................................... 25
5.11ADVANCED .............................................................................................................................. 25
5.12TEST & CALIBRATE.................................................................................................................... 25
5.12.1General.................................................................................................................................. 25
5.12.2Show status for digital inputs ................................................................................................. 25
5.12.3Test digital outputs................................................................................................................. 26
5.12.3.1Test alarm outputs A-D ................................................................................................. 26
5.12.3.2Test alarm outputs E-H .................................................................................................. 26
5.12.3.3Test other outputs.......................................................................................................... 26
5.12.4Calibrate measuring of battery voltage................................................................................... 26
5.12.5Calibrate measurement of mid voltage................................................................................... 27
5.12.6Lamp test ............................................................................................................................... 27
5.13FUNCTIONS.............................................................................................................................. 27
5.13.1General.................................................................................................................................. 27
5.13.2Select language...................................................................................................................... 27
5.13.3Parameters for mid voltage measurement .............................................................................. 27
5.13.4Parameters for measuring battery temperature ....................................................................... 28
5.13.5Parameters for battery circuit test ........................................................................................... 29
5.13.6Parameters for equalizing charging........................................................................................ 29
5.13.7Lowest possible voltage level, Uminimum............................................................................. 30
5.13.8Highest possible voltage level, Umaximum (HVSD) .............................................................. 30
5.13.9Parameters for RI compensation............................................................................................. 30
5.13.10Parameters for external alarm ............................................................................................ 30
5.13.11Special functions ............................................................................................................... 31
5.13.12Other functions ................................................................................................................. 31
5.14SYSTEM DATA........................................................................................................................... 31
5.14.1General.................................................................................................................................. 31
5.14.2Specify rated voltage.............................................................................................................. 31
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5.14.3Specify rated current.............................................................................................................. 31
5.14.4Specify number of rectifiers ................................................................................................... 32
5.14.5Specify system affiliation........................................................................................................ 32
5.15SERVICE..................................................................................................................................... 32
5.16ALARM MESSAGES.................................................................................................................... 32
5.16.1General.................................................................................................................................. 32
5.16.2Alarm during delay ................................................................................................................ 33
5.16.3Active alarm .......................................................................................................................... 33
5.16.4Inactive alarm ........................................................................................................................ 33
5.16.5Alarm queue.......................................................................................................................... 33
5.16.6Alarm descriptions................................................................................................................. 34
6INSTALLATION INSTRUCTIONS...........................................................39
6.1SAFETY INSTRUCTIONS............................................................................................................ 39
6.2UNITS AND CONNECTIONS ................................................................................................... 39
6.3OPERATOR PANEL.................................................................................................................... 39
6.3.1Ordinary operator panel ........................................................................................................ 39
6.3.2Satellite panel (option) ........................................................................................................... 40
6.4I/O UNIT.................................................................................................................................... 40
6.4.1General.................................................................................................................................. 40
6.4.2Power supply......................................................................................................................... 40
6.4.3Measuring inputs ................................................................................................................... 40
6.4.3.1Battery voltage................................................................................................................... 40
6.4.3.2Mid voltage ....................................................................................................................... 40
6.4.3.3Earth fault measuring......................................................................................................... 41
6.4.3.4Battery temperature ........................................................................................................... 41
6.4.4Digital inputs ......................................................................................................................... 41
6.4.4.1General ............................................................................................................................. 41
6.4.4.2Blocking of equalizing charging ........................................................................................ 41
6.4.4.3Fuse monitoring................................................................................................................. 41
6.4.4.4Blocking of earth fault measuring/battery test .................................................................... 42
6.4.4.5External faults .................................................................................................................... 42
6.4.5Digital outputs ....................................................................................................................... 42
6.4.5.1General ............................................................................................................................. 42
6.4.5.2Alarm outputs.................................................................................................................... 42
6.4.5.3Fan control ........................................................................................................................ 43
6.4.5.4Battery test......................................................................................................................... 43
6.4.6Internal communications interface......................................................................................... 43
6.4.7External communications interface ........................................................................................ 43
6.4.7.1RS-232 .............................................................................................................................. 43
6.4.7.2Ethernet ............................................................................................................................. 43
6.4.7.3I2C ..................................................................................................................................... 43
6.5I/O UNIT 2 (option).................................................................................................................... 44
6.5.1General.................................................................................................................................. 44
6.5.2Power supply......................................................................................................................... 44
6.5.3Measuring inputs ................................................................................................................... 44
6.5.4Digital inputs ......................................................................................................................... 44
6.5.5Digital outputs ....................................................................................................................... 44
6.5.5.1General ............................................................................................................................. 44
6.5.5.2Alarm outputs.................................................................................................................... 44
6.5.6Internal communications interface......................................................................................... 45
6.5.7External communications interface ........................................................................................ 45
6.5.7.1RS-232 .............................................................................................................................. 45
6.5.7.2Ethernet ............................................................................................................................. 45
6.5.7.3I2C ..................................................................................................................................... 45
7COMMISSIONING ................................................................................46
7.1SAFETY INSTRUCTIONS............................................................................................................ 46
7.2ELECTRIFICATION..................................................................................................................... 46
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7.3CHECK OF SETTINGS................................................................................................................ 46
7.4CHECK OF OUTPUTS ............................................................................................................... 46
8MAINTENANCE.....................................................................................47
8.1ANNUAL INSPECTION.............................................................................................................. 47
8.1.1General.................................................................................................................................. 47
8.1.2Check of measuring instruments ............................................................................................ 47
8.1.3Check of alarm circuits .......................................................................................................... 47
8.1.4Check of clock....................................................................................................................... 47
9FAULT TRACING...................................................................................48
9.1SAFETY INSTRUCTIONS............................................................................................................ 48
9.2FAULT TRACING FOLLOWING ALARM ................................................................................... 48
9.3OTHER FAULT TRACING .......................................................................................................... 48
Appendices
A BASIC SETTINGS ALARM
B BASIC SETTINGS OTHER
C RECTIFIER STATUS WORD
C RECTIFIER RAM VARIABLES
D TYPE DIAGRAM, PCM2 IN DOUBLE SYSTEMS
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1PRESENTATION
The monitoring unit type PCM2 is designed for monitoring and control of battery based DC
systems.
A strict safety approach characterises the whole product. This is evident in things like the well-
planned alarm functions, the important control characteristics such as the temperature controlled
float charging voltage and an operator panel with graphic clear text display based on a simple
and easy to understand menu system and alarm indication with both LEDs and clear text
messages.
These instructions above all deal with all operation of the monitoring unit and are therefore
chiefly aimed at the personnel that have the day to day responsibility for running the installation,
but also to other personnel who have cause to work with the DC system.
It also contains information on installation, commissioning, service, maintenance and technical
data that is specific to the monitoring unit and is therefore aimed at the personnel who are
responsible for these areas.
The monitoring unit usually works in combination with one or more rectifiers in a complete DC
system. For the description of the rectifier and the system in general, we refer you to the general
system manual.
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2SAFETY INSTRUCTIONS
This product contains dangerous voltage that when touched can cause electric shock, burns or
death.
For safety reasons the affected personnel are classified according to the following requirements for
specific skills.
Authorised service personnel:
• Have electrical training and adequate experience to avoid the dangers that electricity can
cause.
• Are certified to meet authority requirements for the work in question.
• Have linguistic skills that ensure the content in this description cannot be misunderstood.
• Have undergone a product specific training programme for authorised service personnel
that are approved by KraftPowercon Sweden AB.
Qualified personnel:
• Have electrical training and adequate experience to avoid the dangers that electricity can
cause.
• Are certified to meet authority requirements for the work in question.
• Have linguistic skills that ensure the content in this description cannot be misunderstood.
Installation, service, maintenance and fault tracing may only be carried out by authorised
personnel and in accordance with the installation manual.
The protective covers and contact safety devices inside the equipment may only be removed by
authorised service personnel.
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3TECHNICAL DATA
3.1 ELECTRICAL DATA
3.1.1 Common electrical data
Voltage range.........................................................See “Model dependent electrical data”
Show battery voltage, deviation .............................<±0.2 % of measurement range's upper limit
Show battery voltage, measurement range .............See “Model dependent electrical data”
Show rectifier current, deviation ............................<±1 % of rated current
Show rectifier current, measurement range ............0 – 110 % of rated current
Show battery temperature, deviation......................<±2 °C
Show battery temperature, measurement range......-20 – +50 °C
Show earth fault resistance, deviation ....................<±15 %, 50 kΩ – 1 MΩ
Show earth fault resistance, measurement range ....0 – 5 MΩ
Earth fault resistance input impedance ...................>200 kΩ (24 – 220 V), >900 kΩ (440 – 500 V)
Connection, supply voltage....................................0.2 – 2.5 mm2pluggable screw terminal block
Connection, relay outputs ......................................0.2 – 2.5 mm2pluggable screw terminal block
Connection, meas. inputs voltage/earth fault..........0.2 – 2.5 mm2pluggable screw terminal block
Connection, other inputs........................................0.08 – 1.5 mm2pluggable screw terminal block
Relays for alarms + fan, contact data, max .............250 VAC, 8 A at cosø=1 (resistive)
250 VAC, 3 A at cosø=0.4
24/48 VDC, 0.86A at L/R=40 ms
125 VDC, 0.37A at L/R=40 ms
250 VDC, 0.28A at L/R=40 ms
3.1.2 Model dependent electrical data
Nominal volta
g
e Input volta
g
e
range
Measurement
range, voltage
Power consumption at
nom. voltage
(V) (V) (V) (W)
24 18 - 75 0 - 35.8 4.7
48 18 - 75 0 - 71.6 4.8
110/125 85 - 310 0 - 163.6 5.0
220 85 - 310 0 - 327.3 5.7
440/500 300 - 600 0 - 613.8 -
3.2 Environmental data
Class of enclosure ..................................................IP20 as per EN 60529
Cooling ..................................................................Natural convection
Ambient temperature (specified data applies).........0 to +40 °C
Ambient temp. (spec. data are not guaranteed) ......-5 to +55 °C
Storage temperature ..............................................-40 to +70 °C
Humidity ...............................................................<90 % RH, non-condensed
Altitude above sea level ........................................<2000 m
Noise level.............................................................<35 dBA
3.3 Mechanical data
3.3.1 Operator panel
Mounting .............................. For folding into panel
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Dimensions........................... See diagram below
Dimensional draft operator panel
3.3.2 I/O module
Mounting ...........................On terminal rail or direct on vertical surface
Dimensions........................See diagram below
Dimensional draft I/O module
3.4 Conformity with standards
EN 60529........................... Class of enclosure IP20
EN 50178...........................LVD. Electronic equipment, including power electronics in electrical
power installations.
EMC standards ...................Tested in a system context, not as individual product. See relevant
system manual.
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4FUNCTIONAL DESCRIPTION
4.1 GENERAL
PCM2 is designed to monitor and to a certain extent control a direct current system that is based
on batteries, rectifiers and distribution.
The main functions are:
Monitoring of system parameters such as voltage, current, earth fault resistance,
temperature, and others.
Alarm management through analysis of own measurement data, automatic tests and
collection of data from external units.
Alarm indication in clear text on display, LED for general alarm and relay outputs for
external alarm handling.
Control of the charging process such as equalizing charging, temperature control float
charging voltage and tests with lowered voltage (battery circuit test).
Operator communications via display, push buttons and LEDs for alarm indication.
A special case is when PCM2 is only used for monitoring without the option of communications
with the rectifier. A number of rectifier dependent functions are then superfluous or have no
relevance. This is described in more detail in connection with the parameter that controls this
function, see section 5.14.4.
4.2 OPERATOR PANEL
The operator panel is the unit used as the user interface. This contains a graphic display, push
buttons, LEDs for alarm indication and an internal microprocessor. It is connected firstly to the I/O
unit via a RJ45 cable, and secondly to the rectifier via a RJ11 cable.
As an option it is possible to connect another operator panel for use in a control room, for
example.
4.3 I/O UNIT
The I/O unit contains an adapter for the external connections required for the monitoring unit. This
also contains circuits for digital inputs/outputs, measurement circuits, power supply and
microprocessor. It is connected to the operator panel via a RJ45 cable.
4.4 FUNCTIONS
4.4.1 Float charging
Float charging is the normal operating mode determined by the battery. The voltage level is set
according to the battery manufacturer instructions.
The rectifier's float charging voltage may have temperature control. This is providing that the
monitoring unit is fitted with an external temperature sensor for measurement of the battery's
ambient temperature (see section 6.4.3.4). This control is based on a number of parameters based
on information from the battery manufacturer, see section 5.13.4.
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NOTE: If two temperature controlled direct current systems are connected (see “Double systems”,
section 4.4.4), the system that provides the highest voltage (measures the lowest temperature) will
determine the total system voltage.
4.4.2 Equalizing charging
4.4.2.1 General
Equalizing charging means charging with raised voltage level for a limited period.
For equalizing charging the “FAN” output is activated to start a battery compartment fan if
necessary. The output continues to be activated for an additional 60 minutes following a
completed equalizing charge to ensure the evacuation of explosive gases.
In certain circumstances, equalization charging may not occur. This could, for example, apply if
the flow guard in the battery compartment fan indicates a fault or if a load that cannot withstand
the raised voltage is connected. This is handled via the digital input “EQ. BLOCKED”. Open input
prevents equalizing charging.
All types of equalizing charging can always be stopped manually via a single press of a button.
Two different types of equalizing charging are available:
1. Manual equalizing charging
2. Automatic equalizing charging
WARNING: Generally, batteries of VR-type (vent regulated) should not be subject to equalizing
charging. For some battery types equalizing charging could even be harmful to the batteries.
Always follow the instructions stated by the battery manufacturer.
4.4.2.2 Manual equalizing charging
Manuel equalizing charging means that you give a manual request to start equalizing charging
with a certain length. Equalizing charging starts immediately after the request and continues for a
specified period. See section 5.8.2.
4.4.2.3 Automatic equalizing charging
Automatic equalizing charging takes place following a mains power failure.
During a mains power failure, the time (t) is measured for the voltage remaining below a certain
level (Level 1). Equalizing charging starts when mains voltage has returned. From the time the
system voltage has reached Level 2, equalizing charging continues for a further period t * K, that is,
however, restricted to a max 24 hours.
The Level 1, Level 2 and K parameters are specified in the Functions menu, see section 5.13.6.
4.4.3 Battery circuit test
4.4.3.1 Simple battery circuit test
A simple battery circuit test is automatically carried out at optional intervals (normally once a day).
The test involves checking that the entire battery circuit, i.e. not only the battery block is in
working order.
The test is made over a short period of time (about 5 seconds) by lowering the voltage level of the
rectifiers to a test level. In order for the test to be approved, the system voltage must not drop
below the set alarm level over the period. The alarm that is initiated is the Battery circuit fault.
An extra battery circuit test can be started manually. This manually started test works exactly as
above and is also based on the same parameters, see section 5.8.3.
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4.4.3.2 Advanced battery circuit test
The simple battery circuit test primarily finds faults that are purely of the failure type while more
diffuse problems that only give an abnormally high resistance require another type of test. The
faults that are the main target of the advanced test are sulphated (aged) battery cells that become
evident through an increased inner resistance.
Every seventh occasion a simple battery test is started, usually once a week, this is changed to an
advanced test. The advanced test means lowering the output voltage level for a significantly longer
period, around 3 minutes, in order for the fault to reveal itself. A certain basic load is required to
produce a reliable result. The fault reveals itself by the mid voltage of the battery moving to one of
the poles. The alarm that is initiated is Symmetry fault 2. This requires that the mid voltage
measurement function is installed, see section 6.4.3.2.
The reason for the advanced test not being executed each time is that you should avoid running
the battery cycle unnecessarily. Furthermore sulphating is a slow process, as opposed to a failure
that may come suddenly.
4.4.4 Double systems
4.4.4.1 General
Double systems mean that there are two separate sub-systems, system A and B, fitted with rectifier
and battery. The sub-systems can in certain situations be galvanically connected. In a separated
condition, the systems work as two completely independent systems. In a connected state, the
sub-systems need to work together in issues concerning earth fault measurement and battery
circuit tests etc.
4.4.4.2 Earth fault measuring
There may never be more than one piece of equipment at a time for earth fault measurement
connected in one system. In other cases there will be a measurement fault due to them measuring
each other's measurement input impedance. In order to prevent this, do as follows:
System B always measure earth faults.
System A, however, measure earth faults only as long as the input “E.F. BLOCKED” is inactive
(closed). Active (open) input signals that systems A and B are connected which means that system
A closes down its earth fault measurement by galvanically insulating the measurement inputs for
earth fault measurement from the control electronics.
4.4.4.3 Battery circuit test
As long as both sub-systems are separated, each sub-system carries out a battery circuit test
independent of each other. In a connected state, it is system A that initiates the battery circuit test.
The “BATT.TEST” output in system A is connected to input “E.F. BLOCKED (batt.test)” in system B.
When system A closes the loop, system B will also lower its voltage.
4.4.4.4 Load sharing
The load sharing between the two connected systems will only take place passively (through the
RI compensation that is formed naturally in the cabling between the sub-systems). No active load
sharing takes place between the two sub-systems.
4.4.4.5 System setup
One example of the system setup with the connections that are specific to double systems is
shown in Appendix_E. This is based primarily on the configuration specified in the standard
SS4281902 but can also be said to apply to the system diagram specified in KATS 9.1, type station
2 specified in Svenska Elverksföreningens (Swedish Electricity Distributors) “Direct current supply
of protective systems” and Appendix 2 and 3 in Vattenfalls VTR2-05.
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The only thing that actually distinguishes different configurations from the monitoring unit's
perspective is the number of distribution boards that can be connected to both sub-systems via
cross-connector breakers. Regardless of the complexity in this, there are still only two simple
points that need a solution:
1. System A must be notified whether the two sub-systems are connected or not in order to
handle the earth fault measurement.
The cross connector breakers are fitted with breaking auxiliary contacts. These are connected
to the input “E.F. BLOCKED” in system A. This is organised in such a way that the loop is
open when both sub-systems are connected.
2. Each sub-system must notify whether equalizing charging is to be permitted or not.
The cross connector breakers are fitted with breaking auxiliary contacts. These are connected
to the input “EQ BLOCKED” in each sub-system. This is organised in such a way that the loop
is open when the sub-system is connected to any load. If possible, even a fan guard (closing
when airflow occurs) is connected in a series with the loop.
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5OPERATION
5.1 General
Communications between the rectifier and operator is made up of a display, a number of push
buttons and a LED. The display information is built as a menu system in what is known as a tree
structure. On the display, information about system status, parameter settings, alarms etc, is
presented. Furthermore, you can adjust parameters for both installation and operation. All settings
are made via the display's menu system, i.e. actuators in the form of trimming potentiometers and
equivalent are eliminated.
5.2 OPERATOR PANEL
5.2.1 Display
The display is a multi-row graphic clear text display. It is
illuminated from the rear and has white text on a clear blue
background to produce the best conceivable display in all
light conditions.
The text field is in principle divided into two parts:
1. The presentations field for presentation of data, menu
options and other selectable options.
2. Action field for choice of action
Selected options or actions are shown in inverted text.
5.2.2 Push buttons
The push buttons are used to provide instructions for the menu system. Their function varies to a
certain extent depending on where in the menu system you are. In most situations it is clear from
the display which buttons are relevant at each particular time. Their main tasks can be described
as follows:
Arrow up/down
These buttons have different functions depending on the menu screen.
1. For selecting vertically listed options in the presentation field.
2. To increase/reduce parameter values.
3. To browse through the alarm queue.
Arrow left/right
These buttons also have different functions depending on the menu screen.
1. For selection of action options in the action field.
2. In a few of the menu screens there is a list of selectable options located horizontally rather
than vertically. In these cases you use the left/right arrows. As you cannot do two things at the
same time with these buttons, these screens never have more than one option in the action
field.
=====MAIN MENU=====
Show
Charge control
Alarm
Settings
Advanced
________________________________
Select Return
Presentation field ->
Action field ->
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OK button
The OK button is used to carry out a selected action in the action field. The normal procedure is to
first select the option or value in the presentation field using arrow up/down, and then selecting
the action in the action field using arrow left/right and then finishing with OK.
5.2.3 LED “Alarm”
The alarm-LED is turned off in normal conditions.
A flashing red light indicates that there are alarms that are waiting to be acknowledged.
A permanent red light indicates that there are alarms that have already been acknowledged but are
still active, i.e. the alarm condition is still met.
5.3 MENU MANAGEMENT
5.3.1 General
Information exchange with the operator is based on a menu system. It has a tree-like structure with
an initial screen at the top and a main menu underneath that is divided into sub-menus.
The screen is divided into presentation field and action field, see section 5.2.1.
If the display appears in any other condition than the initial screen, there will be an automatic
return to the initial screen after about 1 hour.
5.3.2 Select menu option
Use the “↑” and “↓” buttons to select the menu option
and other options in the presentation field. The selected
option is marked in inverted text. You change the values
and setting options using the “↑” and “↓” buttons. The
exception is a few menu options where you use the “←” and “→” buttons for setting options.
The menu options could be more than the number of available rows in the display. In these
situations a “rolling” menu appears. This means that more options appear when you move
“outside” the existing rows. It works in principle as if they were printed on a roll that rotates. This
also means that you ultimately return to the beginning if you continue to step through the list. A
dashed row shows the limit between the beginning and end of the menu options.
5.3.3 Take action
Use the “←” and “→” buttons to select the action to take
in the action field. End with OK to execute the selected
action.
The Select action means that you confirm the option you
have selected in the presentation field.
The Return action means that you leave the existing menu screen and go back a step to the initial
screen.
5.3.4 Adjust value
The values are changed one digit at a time. Select number using the “←” and
“→” buttons. Now adjust the number up/down using the “↑” and “↓” buttons.
End with OK when the value is the one you want.
=====MAIN MENU=====
Show
Charge control
Alarm
Settings
Advanced
________________________________
Select Return
Select menu option
with ↑and ↓.
=====MAIN MENU=====
Show
Charge control
Alarm
Settings
Advanced
________________________________
Select Return
Select action option
using ←and →.
Adjust
Float charging level,
Ufloat (at 20°C)
120.40V
________________________________
Ready
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If the set value is not within the permitted limits, this screen appears for a few
seconds. The screen above for adjusting the value now reappears, but with
the value adjusted to the closest permitted limit value.
5.4 MENU OVERVIEW
On the next page a complete overview covering all menu options will follow. The sections that then follow
in this chapter describe the menu options in detail.
Value not within
limits. Adjusted
automatically.
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Menu overview
,
PCM2 (Drawin
g
number 11189d)
120.4V 12.3A
2006-08-11 9:31:21
______________________
120.4V 12.3A
______________________
120.4V 12.3A
4 alarms in queue ( )
______________________
______________________
______________________
SYSTEM OK
Float charging
Menu
ALARM
UNDERVOLTAGE, U<
Menu Acknowledge
ALARM
Menu
Float charging
Alarm
Select
Charge control
Show
Settings
=====MAIN MENU=====
Return
SETTINGSSHOW CHARGE CONTROL ALARM ADVANCED
Service
Select
System data
Functions
Test&Calibrate
=====ADVANCED======
Return
TEST&CALIBRATE FUNCTIONS SYSTEM DATA SERVICE
Advanced
Status: Active
19
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5.5 INITIAL SCREEN
5.5.1 General
The initial screen is the screen displayed if no actions are taken. Additionally, the display will
automatically return to this state if no button has been pushed within 1 hour.
At the top you can always see the present battery voltage and the total output current from the
rectifiers. The next row shows System OK if everything is working normally, or Alarm if there is an
alarm condition in progress.
Select the Menu action option and then press the OK button to enter the menu system.
5.5.2 Normal float charging condition
Normal float charging condition is specified with the text Float charging. The
present date and time are specified on the row underneath.
5.5.3 Other charging conditions
The alternative charging conditions are “Equalizing charging”, “Testlevel
Usink” and “Rectifier switched off”.
For equalizing charging the remaining time is also displayed. The exception
is at the beginning of an automatic equalizing charging cycle, where data for
calculating the charge time is missing.
The action field contains the Stop option for cancelling the current equalizing charging.
“Testlevel Usink” displays when testing with lowered voltage, e.g. battery circuit test.
“Rectifier switched off” displays when the rectifiers shut down via the digital input External
blocking.
5.5.4 Alarm
An alarm condition always starts with an alarm message that is awaiting
acknowledgment. This is described in more detail in section 5.16 later. As
soon as all the relevant alarms are acknowledged, the screen here to the side
appears. It shows how many alarms there are in the alarm queue. You can
use the “↓” key to start browsing through the alarms in the queue. The alarm
queue can store up to 20 alarms including unacknowledged alarms. The
alarms are sorted in time order with the most recent alarm first in the queue.
Note that in certain cases when acknowledging, it may appear as if the alarm cannot be
acknowledged. This is due instead to an alarm with an acknowledge demand having come and
gone several times. The result is that this is present in many places in the queue and thereby needs
to be acknowledged several times.
5.5.5 Set clock
When starting the monitoring unit following absence of power, e.g. following
commissioning or service, the clock must be set to the present date and time.
The Set clock action option will remain in the action field as long as this is
not done.
See section 5.10.5 for setting date and time.
120.4V 12.3A
SYSTEM OK
Float charging
2006-08-11 9:31:21
_____________________
Menu
126.9V 21.6
A
SYSTEM OK
Equalizing charging
3h24m left
_____________________
Menu Stop
120.4V 12.3
A
ALARM
Float charging
4 alarms in queue ( ↓)
_____________________
Menu
120.4V 12.3A
SYSTEM OK
Float charging
2018-08-11 9:31:21
_____________________
Menu Set clock
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5.6 MAIN MENU
The main menu consists of five main headings Show, Charge control, Alarm,
Settings and Advanced. Use the “↓” and “↑” buttons to browse through the
main headings. Ensure that the Select action option is highlighted and then
press the OK button to continue to the selected main heading.
A set of main headers is concealed behind the Advanced main heading.
These manage the test and calibration functions and basic selections of functions and basic data.
If PCM2 is used solely as a monitor (number of rectifiers = 0) the Charge control option cannot be
selected.
WARNING! The settings under the Advanced heading are critical for the functionality of the
system. Start by reading carefully through the instructions in this manual. Then only change if you
are absolutely sure about what you are doing!
5.7 SHOW
5.7.1 General
Under the Show header there is a presentation of status in the form of
measurement values and other operating data from battery, rectifier and the
general system. This includes displaying certain operating statistics.
If PCM2 is used solely as a monitor (number of rectifiers = 0) the Rectifier option cannot be
selected.
5.7.2 Show battery related data
Shows battery terminal voltage, battery mid voltage and battery temperature.
The mid voltage and temperature are only shown if relevant measuring
sensors are installed. This is controlled in the Functions menu, see sections
5.13.3 and 5.13.4.
5.7.3 Show rectifier
5.7.3.1 Show voltage and current
Show the voltage and current that each rectifier unit measures and reports to
the monitoring unit.
To show more detailed information on a rectifier unit, select the Detail action
option.
5.7.3.2 Show detailed rectifier data
Available data from the rectifier unit are different between different rectifier models.
Rectifier module type PCS and newer models of PRM3
Available data from the rectifier unit are stored in a 16 bits status word. The
row with individual bits starts with bit 15 to the left and ends with bit 0 to the
right. The row below shows the status word in decimal form in three ways. In
the middle is the value of the complete 16 bits word, to the right the lower 8
bits of the word and to the left the upper 8 bits of the word. A table that
describes the individual bits is found in Appendix_C
=====MAIN MENU=====
Show
Charge control
Alarm
Settings
Advanced
________________________________
Select Return
=======SHOW=======
Battery
Rectifier
Insulation
Statistics
Program version
________________________________
Select Return
=SHOW/RECTIFIER=
Rect1: 120.4V 6.43A
Rect2: 120.4V 6.43A
Rect3: 120.4V 6.43A
Rect4: 120.4V 6.43A
________________________________
Detail Return
===SHOW/BATTERY===
Ubattery: 120.4V
Umid: 60.2V
Temperature: +22°C
________________________________
Return
Rectifier No 1:
Parameter Status
0000 1000 0000 0111
08 2055 07
________________________________
Return
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